Final answer:
The French Revolution's legacy shaped 19th and 20th-century societies through ideas of popular sovereignty, nationalism, and liberalism.
Explanation:
The legacy of the French Revolution for the peoples of the world during the nineteenth and twentieth centuries had profound and lasting impacts on various aspects of society. One key legacy was the spread of ideas such as popular sovereignty, nationalism, and liberalism, challenging traditional governance structures and empowering social movements across Europe. Additionally, the revolution inspired revolutions of 1848 and influenced the development of heritage and memory in the 19th century.
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